13.7+0.24*1.37-2.4*0.137怎样简算
问题描述:
13.7+0.24*1.37-2.4*0.137怎样简算
答
=13.7+2.4*0.137-2.4*0.137
=13.7+(2.4*0.137-2.4*0.137)
=13.7+(2.4-2.4)*0.137
=13.7